dimensions on planning as opposed to reality?

[mjc55]

So at what stage does this become an issue, if at all?

 

I am just looking at detailed plans for main house (we are currently building a Pod that we will live in during house build) and looking back at the Planning drawings I would like to slightly modify some of the external dimensions!  Maybe up to 75mm or so to account for cladding.  Is this going to be an issue?  The overall width is 18.8m.

 

In my time as an AT it was never an issue (as far as I am aware at least) but all my work was in extending existing not new build.

 

Any thoughts welcome

[DevilDamo]

The bottom line is you build in accordance with the approved drawings.

[Mr Punter]

You will probably not get pulled up on this.  They often allow a maximum 100mm leeway to work in with brickwork.  If it already built you don't have much option.  If not, just do as @DevilDamo suggests.

[mjc55]

Its the main house that I am looking at currently - not started the build on that yet.

[BigBub]

Each council will have its own published Enforcement Policy and most take the view that proportionate action in relation to a proven breach of planning would only be taken where there is demonstrable harm caused and where it is expedient to do so. Whilst it is unlikely the council would even be made aware of a discrepancy less than 100mm, its also unlikely they would take any action over it as it would be considered de minimus. At most, you may be asked to submit a variation of condition to amend the approved plans, and at worst the changes could be considered material differences which negate commencement of the development and could lead to planning permission being lost.